Smoke-treating apparatus



Aug. 3, 1926. 1,595,060

c. J. SCHOBRONE' SMOKE TREATING APPARATUS Filed July 27', -1921INVENTOR.

Car/ fdZ/mbrane BY 06mm 1 ATTORNEY Patented Aug. 3, 19.26.

UNITED STATES PATENT .OFFIcE.

CARL J. SCHOIBRONE, OF'EAST CLEVELAND, OHIO, ASSIGNOR OF ONE-FOURTH TOSEBASTIAN FAUL AND ONE-FOURTH TO JACOB FRANK.

. T I SMOKE-TREATING APPARATUS.

Application filed July 27, 1921.- Serial No. 488,045.

but such methods are either too costly or.

too inefiicient for general use.

The object of my invention is to avoid the disadvantages referred to andto provide an apparatus adaptable for use with small heating plants aswell as larger installations and use a minimum amount of power toproduce a substantiallyromplete elimination of the solid matter from thegases resulting from combustion.

Further objects of my invention will appear in the course of thefollowing descrip tion.

To thev accomplishment of the foregoing and related ends, saidinvention, then; consists of the means hereinafter fully described andparticularly pointed out in the claims.

The annexe-d drawing and the following description set forth in detailcertain mechanism embodying the invention, such disclosed meansconstituting, however but one of various mechanical forms in which theprincipleof my invention may be used.

In said annexed drawing Fig. 1 is a diagrammatic view in side clevationof my apparatus applied to a furnace showing the several'units of myconstruction connected with a vent pipe for the discharge of the treatedgases and the outlet for the liquid employed to remove the solidparticles;

Fig. 2 is a transverse sectional View of the mixing chambers showing themixing wheel;

And Fig. 3 is a detail perspective view of one form of spraying deviceused.

As shown in Fig. l of the drawing, the furnace 1,-shown beneath a steamboiler 2 has fine 3 connected by means of a pass; as t with a 5; ope liduit '7. into the lower part of a .'.liXi

from a suitable source of power, shown as an electric motor 6, which mayalso drive the other moving parts of my apparatus. The fan dischargesthe gases of combustion, crawn from the furnace throu h a condrum 8,within which is rotatablv mounted a shaft 9, ha ing rigidly securedthereto series of mi nheels'lC'. These wheels are shown as of two sizes,the smaller ones alternating with those of larger diameter andpermitting clearance for the spray rings or circular pipes 11 arrangedtransversely at intervals within the interior of the drum. The sprayrings are provided. with suitable orifices for the exit of the liquidused to intercept and carry away the solid particles intermingled withthe gases. For all ordinary purposes the liquid employed will be wateranda supply of the'same is conveyed to the spray rings from a main 12,by a connecting branch pipe 13, having a valve l i conveniently located.The branch pipe enters the mixing chamber near its upper por tion and isconnected in turn with each of the spray rings (see Fig.

On the side of the drum opposite that at which the inlet pipe for thefurnace gases is located, an outlet conduit 15, for the treated gases isconnected, and near a central posiion at the base of the mixing chamber,an outlet pipe 16 for the liquid flowing from the drum is supplied. Thislast named pipe is provided with a. valve 17 inclined downwardly anddischarges into a receiving chamber or tank 18, which is open at the topand may be connected with a sewer or any other final place of discharge.Within the receiving chamber below the point of discharge of the outletpipe a screen 19 of suitable mesh may be secured to remove from thewater such agglomerated matter as is carried away from the mixingchamber.

The outlet conduit for the gases is connected with the mixing chambernear its upper portion, and leads thence to the lower portion of asecondary mixing chamber 21 of substantially the same construction asthat of the mixing chamber first described although ordinarily ofsmaller size. Thus, as shown in Fig. 1 of the drawing, the shaft 9 maybe extended longitudinally through the secondary chamber and securedthereto a plurality .1 m shown as of uniform size and more widely spacedthan in the first-named drum. The spray rings 23 may be located betweenalternate pairs of wheels. An inlet pipe 24: provided with a suitablevalve, 24, adjacent the upper portions of the drum admits water to thespray rings, and an outlet pipe 25 at the base of the drum permits thewater passed therethrongh to reach the receiving chamber 18 above theposition of the screen. A valve is provided in the outlet pipe so thatthe rate of flow through the chamber may be controlled.

An outlet conduit 27 for the gases treated in the secondary chamber isconnected near the upper portions of said chamber and leads to a.discharge chamber 28 provided with a vent pipe 29. This dischargechamber may be provided, as shown in Fig. 1, with a nozzle 31 connectedwith a steam line 32 from the boiler to assist in dissipating anyremaining obnoxious qualities of the gases under treatment. An outletplug at the base of the discharge chamber permits of the removal of anyaccumulation of liquid or solid matter whenever necessary.

As shown in Fig. 2, the mixing wheels in the first mixing chamber are oftwo sizes and have broad blades 33, presenting an almost continuoussurface when viewed in line with their axes. The blades of the smallerwheels are preferably staggered with respect to the larger wheels.

The operation of the apparatus is apparent from the description. The fanis driven at a speed to secure the desired rate of combustion in thefurnace, and the gases discharged into the mixing drum are subjected toa beating action by combined effect of the spray jets and the rapidlyrevolving wheels. The inlet and discharge valves for the water may beregulated in accordance with the character of the fuel employed and thequantity and quality of the gases to be treated. A residue of liquid maybe thus maintained in the base of the drum, when desired, to be agitatedby the larger wheels as they rotate. A check valve 3a in the line of thegas inlet pipe will prevent water reaching the fan in the event ofaccident thereto.

The secondary chamber may not under all circumstances be necessary butexperiment has disclosed that with the use of such chamber more perfectelimination may be secured with smaller units and economy of operationthus effected. There is also the advantage of having a differentcharacter and degree of treatment of the gases in the two chambers.

Other modes of applying the principle of my invention may be employedinstead of the one explained, change being made as regards the mecnanismherein disclosed, provided the means stated by any of the fol lowingclaims or the equivalent of such stated means be employed. I

I therefore particularly point out and distinctly claim as myinvention 1. An apparatus for treating smoke comprising, a mixingchamber, a plurality of liquid spraying rings located in said mixingchamber and a plurality of different sized mixing wheels rotatablymounted and alternately arranged in said mixing chamber the smallerwheels being adapted for rota tion within the confines of acorresponding number of said rings, the larger of said wheels beingadapted for rotation between said rings.

2. In an apparatus of the class described, the combination of a mixingchamber, a driving shaft in said chamber, a laterally extending row ofupright spray rings encircling said shaft in said chamber, said ringsbeing spaced apart in an axial direction and adapted inwardly to directradial streams, mixing wheels on said shaft, a fluid inlet passagewayconnected with the said mixing chamber adjacent the upper'portionthereof, fluid outlet passageways at the base of said mixing chamber,and means in said inlet and outlet passageways for controlling theamount of liquid maintained in the mixing chamber.

Signed by me this 5th day of July, 1921.

CARL J. soHoBnonE.

